Is This the Synopsis for Man of Steel?

You know the full cast list, you got your first look at Henry Cavill in the suit, but you still hunger for more details from Zack Snyder's Man of Steel, eh? Well, for the Superman fans out there who just have to know, a synopsis purporting to reveal the official plot for WB's upcoming superhero reboot has surfaced online. But is it the real deal? (Click ahead only if you really, absolutely have to know...)

According to a Canadian casting call posted to the fan site Superman Homepage (via IFC), here's what will go down in Man of Steel, starring Henry Cavill, Diane Lane, and Kevin Costner.

In the pantheon of superheroes, Superman is the most recognized and revered character of all time. Clark Kent/Kal-El (Cavill) is a young twentysomething journalist who feels alienated by powers beyond anyone's imagination. Transported to Earth years ago from Krypton, an advanced alien planet, Clark struggles with the ultimate question -- Why am I here? Shaped by the values of his adoptive parents Martha (Lane) and Jonathan Kent (Costner), Clark soon discovers that having super abilities means making very difficult decisions. But when the world needs stability the most, it comes under attack. Will his abilities be used to maintain peace or ultimately used to divide and conquer? Clark must become the hero known as "Superman," not only to shine as the world's last beacon of hope but to protect the ones he loves.

Contacted for confirmation of the leaked synopsis, Warner Bros. responded to Movieline with the following: "We have not yet released a synopsis." So, it's hard to say -- it's not a confirmation, but not an all-out denial either, which only keeps details murky. More details as they come...